CN203740870U - Fixed pulley device provided with safety hook - Google Patents

Abstract

The utility model discloses a fixed pulley device with a safety hook, which relates to the technical field of pulley devices. It includes a fixed pulley, a safety hook and a sling, the lower end of the safety hook is fixedly connected to a connecting rod through a fastener, the connecting rod is fixedly connected to the top of the fixed pulley through a fastener, and the sling passes through the The upper surface of the pulley of the fixed pulley. The utility model can effectively prevent the fixed pulley from falling off during use by adding a safety hook. The utility model has low manufacturing cost, is easy to operate, and is safe and reliable in operation.

Description

A fixed pulley device with a safety hook

technical field

The utility model relates to the technical field of a pulley device, in particular to a fixed pulley device with a safety hook.

Background technique

In the process of transferring tools and materials up and down the iron tower, the use of fixed pulleys is very common. The original fixed pulley relied on an ordinary cast iron hook above to fix it to the angle iron. The staff moved a little too much and touched the iron hook by mistake. The iron hook is easy to come off and fall from the angle iron, causing danger.

Utility model content

The technical problem to be solved by the utility model is to provide a fixed pulley device with a safety hook that can solve the phenomenon that the fixed pulley falls off during use.

In order to solve the above-mentioned technical problems, the technical solution adopted by the utility model is: a fixed pulley device with a safety hook, including a fixed pulley, a safety hook and a suspension rope, and the lower end of the safety hook is fixedly connected with a connection through a fastener. The connecting rod is fixedly connected to the top of the fixed pulley through a fastener, and the suspension rope passes through the upper surface of the pulley of the fixed pulley. the

Preferably, the safety hook includes an arc-shaped hook and a trigger lever, the bottom end of the arc-shaped hook is provided with a lever groove, and the trigger lever is detachably connected to the lever groove through a pin.

Preferably, the pulley inside the fixed pulley is fixedly connected by a pin shaft.

The beneficial effect produced by adopting the above technical solution is that the utility model can effectively prevent the fixed pulley from falling off during use by adding a safety hook, and its manufacturing cost is low, easy to operate, safe and reliable in operation, and has been successfully used many times at the job site , the effect is good, and there is a great promotion prospect. the

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the utility model;

Wherein, 1 arc hook, 2 levers, 3 connecting rods, 4 fixed pulleys.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail.

As shown in Figure 1, the utility model is a fixed pulley device with a safety hook, including a fixed pulley 4, a safety hook and a suspension rope, the lower end of the safety hook is fixedly connected with a connecting rod 3 through a fastener, and the The connecting rod 3 is fixedly connected with the top of the fixed pulley 4 by a fastener, and the suspension rope passes through the upper surface of the pulley of the fixed pulley 4; The bottom end of the type hook 1 is provided with a lever groove, and the trigger lever 2 is detachably connected with the lever groove through a pin; the pulley inside the fixed pulley 4 is fixedly connected through a pin shaft.

In the utility model, the iron hook is replaced with an iron hook with a built-in insurance. During use, the staff only needs to gently open the hook safety, the hook hooks the angle iron, and then releases the safety, and the fixed pulley is fixed on the angle iron. Even if the staff has a slightly larger range of motion during the work process and touches the fixed pulley by mistake, the safety hook on the fixed pulley will also work to prevent the fixed pulley from falling off.

The utility model can effectively prevent the fixed pulley from falling off during use by adding a safety hook. The utility model has low manufacturing cost, is easy to operate, and is safe and reliable in operation. the

Claims (3)

1. A fixed pulley device with a safety hook, comprising a fixed pulley (4), a safety hook and a sling, characterized in that: the lower end of the safety hook is fixedly connected with a connecting rod (3) through a fastener, and the The connecting rod (3) is fixedly connected to the top end of the fixed pulley (4) by a fastener, and the suspension rope passes through the upper surface of the pulley of the fixed pulley (4). the 2. A fixed pulley device with a safety hook according to claim 1, characterized in that the safety hook includes an arc-shaped hook (1) and a lever (2), and the arc-shaped hook (1) The bottom end is provided with a lever groove, and the lever (2) is detachably connected to the lever groove through a pin. 3. A fixed pulley device with a safety hook according to claim 1, characterized in that: the pulley inside the fixed pulley (4) is fixedly connected by a pin shaft.